Shuttle-binding device for looms



' (No Model.)

, J. OOWGILL. SHUTTLE BINDING DEVICE FOR LOOMS.

No. 417,312. Patented Dec. 17', 1889.

N, PETERS. PhollrLilhogmpher, Washinglnn. ac.

UNITED STATES PATENT OFFIC JAMES CO\VGILL, OF LO\V ELL, ASSIGNOR OF ONE-HALF TO FRANK CALVERT, OF WEST FORD, MASSACHUSETTS.

SHUTTLE-BINDING DEVICE FOR LQOMS.

SPECIFICATION forming part of Letters Patent No. 417,312, dated December 17, 1889. Application filed January 25, 1889. Serial No. 297,531. (No model.)

To all whom it may concern:

Be it known that 1, JAMES COW GILL, a citizen of the United States, residing at Lowell, in the county of Middlesex and Commonwealth of Massachusetts, have invented a certain new and useful Improvement in Shuttle- Binding Devices for Looms, of which the following is a specification.

My invention relates to shuttle-binding devices for looms; and it consists in the combinations hereinafter described and claimed, which have for their object to dispense with the daggerrod-actuating spring and the binder-spring, and to produce a substantially-uniform pressure upon the shuttle as it enters the shuttle-box, and thereby to lessen the power required to operate the shuttle-throwing mechanism and to lessen the expense of repairs.

In the accompanying drawings, Figure 1 is a front elevation of part of the lay-beam of a loom, the binder and its stud, the daggerrod finger, one of the brackets which support the dagger-rod, a part of the dagger-rod, and a weight secured to said rod; and Fig. 2, a section, 011 the line at so in Fig. 1, through the laybeam and dagger-rod, showing also an elevation of the inner end of the shuttle-box and its lug, and of a shuttle in said shuttle-box. Figs. 3 and 4 show another form of the dagger-rod, which is bent or offset to weight saidrod and cause its finger to press against the binder; but in other respects Figs. 3 and ii: are like Figs. 1 and 2, respectively. Fig. 5 shows a plan of the dagger-rod shown in Figs. 1 and 2, with its supporting-brackets, weights, and buffers; and Fig. 6, a plan of the dagger-rod shown in Figs. 3 and 4, with its supportingbrackets, weights, and buffers.

The following-named parts-nan1ely, the lay-beam B, the binder'stud b, the binder (1, having a horizontal guide-slot 1) near its free end, the shuttle-box b having a horizontal lug b, which projects through said slot 5 the dagger-rod finger (Z, the daggerrodbrackets cl, the dagger (Z and the shuttle C- are all of any usual construction and operation.

The dagger-rod D is provided with a finger d, which bears against the front side of the binder I), and said rod turns in brackets (1 in the usual manner, and has secured to it a dagger, which assists in stopping the loom when the shuttle at the end of the shot fails to enter the shuttlebox; but in other respects the dagger-rod D herein described differs from the dagger-rod in common use. One form of dagger-rod heretofore used has another finger, which extends beneath the laybeam and is pressed upon by a leaf-spring secured to the under side of said lay-beam, the object of said spring being mainly to rock the dagger-rod in such a manner as to hold the finger d, which reaches up in front of the lay-beam, constantly against the front of the binder. Said spring has some tendency to press the binder in toward the back of the shuttle-box and against the shuttle, if there be one in the box. The resistance which the" binder commonly offers to the entrance of the shuttle into the shuttle-box is, however, mainly due to a binder-spring, usually of sheet metal and of great stiffness, secured to the lay-beam and pressing against the front of the binder, thus forcing the binder backward or into the shuttle-box. When the dagger-rod and springs are thus arranged, the shuttle enters the shuttle-box against the constantly-increasing pressure of the binder, because the farther the shuttle enters the box the more the binderis turned outward on its stud and the greater the tension of the binderspring, and the farther the dagger rod is rocked the greater is the tension of the dagger-rod spring. tension of the springs the more said springs resist a further movement of the binder, so that thepressure of the binder upon the shuttle is rapidly increased as the shuttle enters the box farther and becomes very great be; fore the shuttle stops; hence a considerable force is ordinarily required to throw the shuttle out of one box and across the lay into the other box,the binders and the springs resisting the movement of the shuttle either into or out of their respective boxes, there being of course a shuttle-box at each end of the lay: beam. ters the shuttle-box frequently causes the binder-spring to be broken. Such bindersprings are expensive, costing about fifty cents apiecethat is, a dollar a loom. The usual pressure and consequent friction of the The force with which the shuttle en- Evidently the greater the boxes.

I dispense with the binder-springs and with For the constantly-inereasing binders upon the shuttles wear the shuttles rapidly, and the force with which the pickers must strike the shuttles soon wear out the I pickers and frequently break the pickersticks which carry said pickers and the pickerstraps which actuate said picker-sticks, and much more power is required than if the shuttle could freely enter and leave the shuttlel the dagger-rod spring, and thereby save their cost, diminish the Wear upon the shuttles and pickers, lessen the liability of breaking the picker-sticks and picker-straps, enable the loom to be run with less power, and give a I steadier motion to the shuttle.

pressure of the binders I substitute a substantial uniform pressure of the same. I weight the daggerrod D either by securing thereto a heavy backwardly-extending arm \V, which may be of cast-iron, near each end thereof, as shown in Figs. 1, 2, and 5, or by bending the dagger-rod backward into the form of a double arm or crank IV, the effect of either c011- struction being to hold the upper end of the dagger-rod finger d against the front of the binder b with a substantially-uniform pressure, the movement of the arms IV or \V being so slight as not to change materially their leverage on the dagger-rod D. The free ends I of the arms \V or \V, by striking the under side of the lay-beam B, limit the out-( ward or forward motion of the free end of 1 the binder Z), and each of said arms at its free end is provided with a buffer or cushion w or w, of rubber, felting, leather, or similar I elastic or semi-elasticmaterial, to dead en the blows of said arm against said lay-beam, these buffers being secured to the arms in any convenient manner The buffer 10 may be a sleeve or washer drawn over the dagger-rod and surrounding the end of the arm IV, as shown in Figs. 3, 4, and 6. If desired, the bufi'ers may be secured to the lay-beam instead of to the arms IV V. The arm \V, Figs] 9 and 5, is provided with a collar, i

through which the dagger-rod D is passed, and. a set-screw 10 turning in said collar, thrusts against said rod and holds said arm at the desired angle with the dagger-rod finger (l. The dagger-rod finger and the dagger d are also adjustable by similar setscrews (1 (1 passing through collars d d with which they are provided, and which surround said dagger-rod in the usual manner, so that they may be arranged at any desired angle with the arm IV. (Shown in Figs. 1, 3, 4, and 6.)

I claim as my invention 1. The combination of the lay-beam, the shuttle-box supported thereon, the binder i pivoted on said lay-beam, and the dagger-rod supported and turning on said lay-beam and provided with a finger arranged in contact with said binder, and provided also with an arm extending under said lay-beam to limit the movement of said finger and binder, and adapted by its weight to rock said rod and to press said finger with a substantially-uniform pressure against said binder, as and for the purpose specified.

2. The combination of the lay-beam, the shuttle-box supported thereon, the binder pivoted on said lay-beam, the dagger-rod supported and turning on said lay-beam and provided with a finger arranged in contact with said binder, and provided also with an arm extending under said lay-beam to limit the movement of said finger and binder, and adapted by its weight to rock said rod and to press said finger with a substantially-uniform pressure against said binder, and a butter secured to said arm to deaden the blow of said arm against said lay-beam, as and for the purpose specified.

In witness whereof I have signed this specification, in the presence oftwo attesting witnesses, this 4th day of January, A. D. 1889.

JAMES COWGILL. Witnesses:

ALBERT M. MOORE, ALEXANDER J. CAMPBELL. 

